American Root Drugs
PDF
American Root Drugs

Prepared for the U.S. Department of Agriculture by Alice Henkel, Assistant in Drug-Plant Investigations. The fifty drugs described include all the official roots found in this country, besides such nonofficial drugs as are most frequently quoted in drug catalogues.

Weeds Used in Medicine By Alice Henkel
PDF
Weeds Used in Medicine

It is a matter of interest, primarily to the farmer, that certain of the well-known weeds now either generally or locally infesting the country are the sources of crude drugs at the present time obtained wholly or in part by importation from abroach Roots, leaves, and flowers of several of the species most detrimental in the United States are gathered, prepared, and cured in Europe, and not only form useful commodities there but supp...